Improvement in copying-presses



G. A. SMITH.

COPYING-PRESS.

Patented June 19,1877.

Fmu E a FIGURE INVENTU'R WITNESSES gw/uaa.

NJETERS, PHOTO-UTHDGR'KWELQL wxsnmc'rou. D G;

UNITED STATES GEORGE A. SMITH, OF BOSTON, -MASSACHUSETTS.

IMPROVEMENT 'IN 'COPY-ING-PRESSES.

specification forming .part of Letters Patent No. 1 92,299, dated June19, 1877 gapplication tiled June 13, 1877.

To all whom it may cowcern:

Boston, county of Suffolk, State-of Massachusetts, have invented a newand useful Improvement in Copying-Presses for Papy-rographic and otherPurposes, of which the fol- .lowing is a full, clear, and exactdescription,

crank which actuates the movable bed-plate or follower; and Fig. 3 is aplan view of the devices which actuate the movable bed-plate orfollower.

Similar letters of reference denote corresponding parts wherever used.

My invention relates to a novel construction of copying-presses with aview to facilitating the process of duplicating copies or impressions,more particularly designed for use in papyrographic copying, butapplicable also to ordinary letter-press copying; and it consists in theemployment, in combination with the reciprocating bed-plate or follower,of a slide upon which the book or portfolio in which the copies are tobe taken rests, and to which, in papyrographic copying, the lowerportion of the book with the inking-pad and the papyrographic stencilmay be secured; said slide adapting the book or stencil and itsaccompaniments to be readily and quickly withdrawn and replaced, as willbe explained. It further consists in certain details of construction andarrangement hereinafter fully described.

In the accompanying drawings, A represents an open rectangular frame, ofmetal or other suitable material, provided at its sides or ends and ator near the corners with uprights a a, which extend above the frame andhave the stationary presser-plate or platform 0 rigidly secured to theirupper ends. Within the open frame A is located the reciprocating platenor follower B, provided, by preference, at its corners with pendent lugsor arms I) b, which fit within the angles of the bed-frame A, and serveto guide and steady the movements of the platen B.

Q Other means for s-teadying and guiding the Be it known that I, GEORGEA. SMITH, of

platen B may, however, be employed.

The platen B is recessed or cut away on its upper face to adapt it toreceive a slide, B, covering the face of the platen, except a narrowportion or rib b, at each end, the slide moving back and forth betweenthese ribs 1;, and being held engaged therewith by a dovetail or otherequivalent form.

The bed-plate or follow-erB when depressed is about flush on its upperface with the upper edge of the open rectangular frame A, except infront where the upper edge of the frame is cut away, as shown at a, Fig.1, to permit the movements of the slide B, which is designed lever, D,rigidly attached to it for operating it, and the inner end, at a pointabout midway of the length of and underneath the bedplate B, is providedwith an arm or lever, E, which at its outer end has a slot formed in itat e, adapting it to engage with a pin, on a pendent lug or ear, F,formed upon or rigidly connected with the lower face of the bed-plate Bat or near its center, as shown in Fig. 2.

By this method of attachment the bed-plate is permitted to move up anddown vertically, operated by an arm vibrating in the arc of a circle.

The operation of the parts above described will be readily understood.

In papyrographic copying, the lower lid or cover of the portfolio willbe rigidly fastened to the slide B by screws or other suitable fasteningdevices, in such manner that the portfolio will always move with theslide, and the upper lid or cover is provided at its ends near the backwith small metallic clips or ears g, which, when the slide B is drawnout from under the stationary upper plate 0, are caused to ride uponshort inclines h attached to the forward ends of the ribs b or to thefront bar of frame A, as preferred, and the cover is thus automaticallylifted into position to facilitate the removal of the copy or impressiontaken and the insertion of the sheet for a new copy or impression, thecover automatically closing upon the latter as the slide is again pushedor drawn back into place. The inking-pad and the papyrographic stencil,with the sheet on which the copy is to be taken, will be placed on thelower fixed cover, in the usual manner, and will be moved back and forthby the slide B. The latter may have a spring or springs or a cord orchain running back over a pulley, and having a weight attached connectedwith it for retracting it or drawing it back into place when it isreleased by the operator, or, if preferred, the cord or chain may beconnected with a treadle and operated by the foot of the attendant. Therock-shaft D, also, instead of being operated by hand, may have itsactuating-arm connected by a rod with a suitably-arranged treadle, andoperated thereby, if preferred; and in presses for heavy work. saidactuating-arm.may be shortened and provided with a toothed segmentgearing .with a second segment, to which the power may be applied, orother suitable form of gearing may be employed for increasing theleverage, if desired.

Instead of the inclines for lifting the cover, a chain may be employedhaving one end attached to the cover and the other to an upright on theplaten O, for accomplishing the same purpose.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The combination of the slide with the lower vertically-reciprocatingplaten, substantially as and for the purpose set forth.

2. The slide on the reciprocating lower platen B, in combination withthe copyingportfolio, secured to and moving with said slide,substantially as described. I

3. The slide B on the movable platen B, in combination with the inclinesh or their equivalents, and ears g on the portfolio, for the purpose setforth.

In testimony whereof I have hereunto set my hand this 9th day of June,A..D. 1877.

Roscoe P. OWEN, J. WALTER WELLS.

